Lock-hinge



(No Model.)

G. OBERBECK. LOGK HINGE.

1% 475,145. Patented May ,17, 1892.

m F lllmll Q Quinn nL W W NHL Units STATES PATENT OFFICE.

GEORGE OBERBEOK, OF HOBOKEN, NEW' JERSEY.

LOCK-HINGE.

SPECIFIGATION forming part of Letters Patent No. 475,145, dated May 17, 1892.

Application filed March 2, 1892.

To all whom it may concern:

Be it known that I, GEORGE OBERBECK, of the city of lloboken, Hudson county, and State of New Jersey, have invented certain new and useful Improvements in Lock-Hinges, of which the following is a specification.

I combine wit-h the two parts of whatis usually known as a lock-hinge a bi nge the two leaves of which are provided with knuckles pivoted together and notched on their meeting faces so as to engage each othermeans by which these two parts may be drawn toward each other and clamped tightly together. I also combine with one of the leaves a detachable plate, which is made fast to the obj ect it supports (or by which it is supported, as the case may be) and is connected to the hinge-leaf in such manner that the one merely rests upon the other, thus permitting them to be readily separated whenever desired. These are the characteristic features of my invention, to a better understanding of which I shall now proceed to describe the same more.

particularly by reference to the accompanying drawings, in which I have represented the preferred embodiment of my invention.

In the drawings, Figure 1 is a perspective view of the complete hinge with the parts thereof drawn together and locked. Fig. 2 is an axial section through the knuckle of the hinge with the clamp or cam-lever in unlocked position. 3 3, Fig. 1.

The one leaf of the hinge consists in the present instance of a base-plate A, an arm B, projecting at right angles from the face of the plate, and a tubular knuckle C, formed on the outer end of the arm.

The other leaf consists of a tubular knuckle D and a bar E, laterally and horizontally projecting therefrom. To this bar is attached the object to which this leaf of the hinge is to be connected which we will suppose to be a shutter. In the form of lock-hinge shown in the drawings the leaves are united by a pintle which cannot conveniently be removed, and so to permit the shutter to be lifted off from the hinge I connect it to the bar E by a plate F, (to be fastened to the shutter) which is provided with a hook G, which catches over and rests upon the bar E, and is prevented from lateral movement thereon by side lugs Fig. 3 is a section on line Serial No. 423.474. (N0 model.)

a on the bar between which it fits. Thetwo parts of the. hinge are united by a pintle H, which passes through their knuckles O D, as shown. The meeting faces of the knuckles are provided with a notch and lug-interlocking device of any usual kind. In this instance the lug shown at b is on the knuckle D, and the notch, as at c, is formed in the knuckle C. There may be one notch only or a plurality of notches, as preferred, this depending upon the number ofvarious positions in which it may be desired to lock the shutter.

In order to positively hold and lock the parts of the hinge in their engaged position, I employ means by which the two are drawn and held tightly together. The clamp employed for this purpose in the present instance is a cam-lever I. The pintle is headed at one end, its other end projects through beyond the opposite end of the knuckle-joint, and to this projecting end is pivoted or pinned the cam-lever at d. The cam end of lever I is intended to act against the end of the knuckle next to which it is, and the arrangement is such that when the cam-lever is in unlocking position, as in Fig. 2, there is room enough between its cam end and the knuckle to permit the knuckles'to separate far enough to allow the projection on the one to quit the notch in the other. When, however, the lever is moved from the position shown in Fig. 2 to that shown in Fig. 1, its cam (which has substantially the same form and action as seen in a jack-knife hinge presses and clamps together the two knuckles O D and locks them in that position, as seen in Fig. 2. To better insure this action, I prefer to interpose between the head of the pintle and the knuckle next to it one or more spring-washers c, which will yield sufficiently to hold the cam-lever in locked position (after the cam has passed its dead or central point.) It will be noticed that in this arrangement the pintle is capable of free axial rotation, and thus the cam-lever virtually is swiveled, so that it may be turned to any convenient position around the axis of the pintle as a center. 7

The cam-lever is represented as below the body of the hinge; but manifestly it can be placed at the other end of or above the hinge.

Having described my invention and the same into effect, what I claim, and desire to secure by'Letters Patent, isas follows:

1. The combination, with the interlocking knuckles of a hinge, of aclamp whereby said parts are drawn or pressed and positively held and locked together in their engaged position,

substantially as and for the purposes herein- 4. The combination of the two interlocking parts of the hinge, the pintle therefor, the spring washer orwashe'rs e, and the cam-lever I, pivoted to and carried by the pintle, substantially as and for the purposes hereinbei fore set forth 5. The combination of the two interlocking hinge parts, the headed pintle therefor capable of independent axial and rotary movement, and the clamp or cam-lever pivotedto and carried by the pintle, under the arrangement and for joint operation as hereinbefore shown and set forth. I

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE OBERBEGK. Witnesses:

SAMUEL KRAUS, FRED J. W. FISCHER. 

